Frame support



F. M. AHEARN.- FRAME SUPPORT. APPLICATION FILED FEB, 21. 1922.

Patented July 11, 1922.

INVENTOR.

MM/ Q v W ATTORNEYS.

FRANK M. AHEARN, OF GREENVILLE, PENNSYLVANIA.

FRAME SUPPORT.

Specification of Letters Patent.

Patented July 11, 1922.

Application filed February 21, 182 2. Serial No. 538,215.

T 0 all whom it may concern:

Be it known that I, FRANK M. AHEARN, a citizen of the United States, residing at Greenville, in the county of Mercer and State of Pennsylvania, have invented new and useful Improvements in Frame Supports, of which the following is a specification.

Locomotive frames are usually carried b the axle bearings through saddles whic straddle the frame support and rest on the boxes of the bearings and springs mounted on the saddles and linked to the frame, the support of the frame being communicated to the axles through these springs and saddles.

When the spring becomes broken or weakened in order to support the frame and to properly adjust the load on the frame it is desirable that the frame be carried at about the same relation to the bearing box that it is normally carried by the spring. Again it some times happens that one of the bearings of a locomotive becomes heated, or otherwise impaired and it is desirable to relieve this bearing of the weight.

With the present invention it is desirable to carry the weight of the frame independently of the spring and to relieve the bearing of the weight upon it.

The invention is illustrated in the accompanying drawings as follows 1- Fig. 1 is an end view, the saddle being partly in section on the line 11 in Fig. 2.

Fig. 2 is a side view of Fig. 1, the left half of the saddle and bearing being shown in section taken on the line 22.in Fig. 1.

Fig. 3 is a view similar to Fig. 2 but with a variation in the application of the support.

Fig. 4 is a side elevation of the supporting block.

Fig. 5 a side elevation of an alternative construction of the saddle.

1 marks the axle, 2 the drive wheel, 8 a bearing box resting on the axle, 1 the frame, 5 the guide surfaces on the frame engaging the bearing box, 6 a supporting spring, 7 links suspending the frame from the spring, and 8 a saddle which straddles the frame, the legs resting on the bearing box and supporting the springs. These parts are of usual. construction except that the saddle has the perforations 9 and 10 through the side walls, one above the frame and one below.

In the normal operation of the locomotive the yielding of the spring permits the bearing to move vertically with relation to the frame there being sufficient play in the saddle to permit of this movement. lVhen it is desired to relieve the bearing of the weight of the locomotive a bearing block 11 is placed in the saddle above the frame. This block is provided with a perforation 12 and a pin 13 is passed through the perforations 9 and the perforation 12, thus securing the block in place on the frame and lifting the saddle from the bearing thus relieving it of weight. In order to adjust the supporting block to lift the saddle to the desired degree the supporting block has the perforation 12 arranged at varying distances from its sides so that by turning the block varying amounts of supporting metal can be interposed between the pin 13 and the frame.

When the spring becomes weakened or broken the bearing block may be placed below the frame and the pin 13 passed through the perforations 10 and through the perforation 12 in the supporting block. Here again the varying dimensions of the block permit of the block being so adjusted as to properly support the frame.

The saddle may be provided with a slot 14 in lieu of the two perforations 9 and 10 and will support the pin in as much as the pressure in each instance is away from the frame.

lVhat I claim as new is 1. In a frame support, the combination of a frame; a saddle straddling the frame; a bearing box supporting the saddle, said saddle having perforated sides; a supporting block arranged between the legs of the saddle and operating against the frame and forming a support, said block having a perforation therethrough; and a pin extending through the perforations in the saddle and the block.

2. In a frame support, the combination of a frame; a saddle straddling the frame; a bearing box supporting the saddle, said saddle having perforated sides; a supporting block arranged between the legs of the saddle and operating against the frame and forming a support, said block having varying dimensions to adjust its supporting relation to the frame and a perforation therethrough; and a pin extending through the perforations in the saddle and the block.

3. In a frame support, the combination of a frame; a saddle straddling the frame; a

bearing box supporting the saddle, said saddle having perforated sides; a supporting block arranged between the legs of the saddle and operating against the frame and forinlng a support, said block havlng a perforation therethrough and said block having its sides varyingin'distan'ce from the perforation therethrough; and a pin extending'throughthefperfo'rations in the saddle and the block. v

4. In-a frame support,-'the combination of aframe; a saddle straddling the frame, the sides of saidsaddle being perforated; a bearing box supporting the saddle; a supporting block under the frame, said block having a perforation; and a pin extending through the perforations in the'saddle and the block. 7 I

6. A locomotive saddle having perforations 'in its sides adapted to receive'a pin for retaining a supporting block.

In testimony whereof I have "hereunto set my hand.

' FRANK M; AHEARNQ 

